What happened to my cucumbers?

What happened to my cucumbers?

Wed May 14, 2014 9:42 pm

I have two nice raised bed gardens. In one, I have 9 cucumber plants which have been growing very well. I check them every day. Today I walked out and nearly fainted when I seen one of my plants was suddenly dead!

It went from perfectly healthy, to suddenly dead and wilted over night. So I look around and check the other plants, and the one next to it looks weird. The base of the vine is split. I took a close up picture of it. The others do not have any problems yet. The garden gets about 1" of rain/water a week and I suspect a vine borer for no other reason than I feel like I've eliminated all other possibilities.

What do you all think? Here is a picture of the dearly departed plant, and the stem of the nearby plant.